FST34170MTD

FST34170MTD Datasheet

FST34170 17-Bit to 34-Bit Multiplexer/Demultiplexer Bus Switch

Part	Datasheet
FST34170MTD	FST34170MTD (pdf)

Related Parts	Information
FST34170MTDX	FST34170MTDX

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FST34170 17-Bit to 34-Bit Multiplexer/Demultiplexer Bus Switch FST34170 17-Bit to 34-Bit Multiplexer/Demultiplexer Bus Switch The Fairchild Switch FST34170 is a 17-bit to 34-bit highspeed CMOS TTL-compatible multiplexer/demultiplexer bus switch. The low on resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. The device can be used in applications where two buses need to be addressed simultaneously. The FST34170 is designed so that the A Port demultiplexes into B1 or B2 or both. Two select SEL1, SEL2 inputs provide switch enable control. • Slower Output Enable times prevent signal disruption • 4 switch connection between two ports • Minimal propagation delay through the switch • Low lCC • Zero bounce in flow-through mode • Control inputs compatible with TTL level • See Applications Note AN-5008 for details Ordering Code: Order Number Package Number Package Description FST34170MTD Note 1 MTD56 56-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 6.1mm Wide FST34170MTDX_NL Note 2 MTD56 Pb-Free 56-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 6.1mm Wide Note 1 Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Note 2 “_NL” indicates Pb-Free product per JEDEC J-STD-020B . Device is available in Tape and Reel only. UHC is a trademark of Fairchild Semiconductor Corporation. 2005 Fairchild Semiconductor Corporation DS500450 FST34170 Logic Diagram Connection Diagram Truth Table Inputs SEL1 SEL2 Function x A x B1 x A x B2 x A x B1 and x B2 Switch Open Pin Descriptions Pin Name SEL1, SEL2 A B1, B2 Description Select Inputs Bus A Bus B FST34170 Absolute Maximum Ratings Note 3 Supply Voltage VCC DC Switch Voltage VS Note 4 DC Input Control Pin Voltage VIN Note 5 DC Input Diode Current lIK VIN 0V DC Output Current IOUT DC VCC/GND Current ICC/IGND Storage Temperature Range TSTG to mA 128 mA 100 mA to qC Recommended Operating Conditions Note 6 Power Supply Operating VCC Input Voltage VIN Output Voltage VOUT Input Rise and Fall Time tr, tf Switch Control Input 4.0V to 5.5V 0V to 5.5V 0V to 5.5V 0nS/V to 5nS/V Switch I/O Free Air Operating Temperature TA 0nS/V to DC qC to qC Note 3 The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum rating. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Note 4 VS is the voltage observed/applied at either the A or B Ports across the switch.

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FST34170 17-Bit to 34-Bit Multiplexer/Demultiplexer Bus Switch

FST34170 17-Bit to 34-Bit Multiplexer/Demultiplexer Bus Switch

The Fairchild Switch FST34170 is a 17-bit to 34-bit highspeed CMOS TTL-compatible multiplexer/demultiplexer bus switch. The low on resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise.

The device can be used in applications where two buses need to be addressed simultaneously. The FST34170 is designed so that the A Port demultiplexes into B1 or B2 or both.

Two select SEL1, SEL2 inputs provide switch enable control.
• Slower Output Enable times prevent signal disruption
• 4 switch connection between two ports
• Minimal propagation delay through the switch
• Low lCC
• Zero bounce in flow-through mode
• Control inputs compatible with TTL level
• See Applications Note AN-5008 for details
Ordering Code:

Order Number

Package Number

Package Description

FST34170MTD Note 1

MTD56
56-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 6.1mm Wide

FST34170MTDX_NL Note 2

MTD56

Pb-Free 56-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 6.1mm Wide
Note 1 Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Note 2 “_NL” indicates Pb-Free product per JEDEC J-STD-020B . Device is available in Tape and Reel only.

UHC is a trademark of Fairchild Semiconductor Corporation.
2005 Fairchild Semiconductor Corporation DS500450

FST34170

Logic Diagram

Connection Diagram

Truth Table

Inputs

SEL1

SEL2

Function
x A x B1 x A x B2 x A x B1 and x B2 Switch Open

Pin Descriptions

Pin Name SEL1, SEL2

A B1, B2

Description Select Inputs

Bus A Bus B

FST34170

Absolute Maximum Ratings Note 3

Supply Voltage VCC DC Switch Voltage VS Note 4 DC Input Control Pin Voltage

VIN Note 5

DC Input Diode Current lIK VIN 0V

DC Output Current IOUT DC VCC/GND Current ICC/IGND Storage Temperature Range TSTG
to mA
128 mA
100 mA to qC

Recommended Operating Conditions Note 6

Power Supply Operating VCC Input Voltage VIN Output Voltage VOUT Input Rise and Fall Time tr, tf

Switch Control Input
4.0V to 5.5V 0V to 5.5V 0V to 5.5V
0nS/V to 5nS/V

Switch I/O Free Air Operating Temperature TA
0nS/V to DC
qC to qC

Note 3 The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical

Characteristics tables are not guaranteed at the absolute maximum rating.

The “Recommended Operating Conditions” table will define the conditions
for actual device operation.

Note 4 VS is the voltage observed/applied at either the A or B Ports across the switch.

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Datasheet ID: FST34170MTD 515549